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Q.

Mercurous ion is represented as:

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a

${Hg}_{2}^{2 +}$

b

$Hg + {Hg}^{2 +}$

c

${Hg}_{2}^{+}$

d

${Hg}^{2 +}$

answer is A.

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Detailed Solution

Mercurous ion is represented as ${Hg}_{2}^{2 +}$

The two Hg+ ions' singly filled 6s-orbitals overlap to create a Hg-Hg covalent bond.Hg⁺ions are dimeric species, namely ${Hg}_{2}^{2 +}$ .

Hence the correct option is A

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